Gummy dropped her new album, titled 'Stroke,' and a music video for title track 'I I YO' on June 5th. 'I I YO' is a pop ballad song which contains empowering message to anyone who is chasing for their dreams. With Gummy's strong vocals, emotional piano melody, as well as Jaejoong's sincere acting, the MV looks awesome as ever! In the music video Jaejoong plays the role as a boxer who trains so hard to achieve his dreams.